Oracle Predefined PL/SQL Exceptions 预定义异常

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Predefined PL/SQL Exceptions
　　An internal exception is raised implicitly whenever your PL/SQL program violates an Oracle rule or exceeds a system-dependent limit. Every Oracle error has a number, but exceptions must be handled by name. So, PL/SQL predefines some common Oracle errors as exceptions. For example, PL/SQL raises the predefined exception NO_DATA_FOUNDif a SELECT INTO statement returns no rows.
　　To handle other Oracle errors, you can use the OTHERS handler. The functions SQLCODE and SQLERRM are especially useful in the OTHERS handler because they return the Oracle error code and message text.>EXCEPTION_INIT to associate exception names with Oracle error codes.
　　PL/SQL declares predefined exceptions globally in package STANDARD, which defines the PL/SQL environment. So, you need not declare them yourself. You can write handlers for predefined exceptions using the names in the following list:
ExceptionOracle ErrorSQLCODE Value　　ACCESS_INTO_NULL
　　ORA-06530
　　-6530
　　CASE_NOT_FOUND
　　ORA-06592
　　-6592
　　COLLECTION_IS_NULL
　　ORA-06531
　　-6531
　　CURSOR_ALREADY_OPEN
　　ORA-06511
　　-6511
　　DUP_VAL_ON_INDEX
　　ORA-00001
　　-1
　　INVALID_CURSOR
　　ORA-01001
　　-1001
　　INVALID_NUMBER
　　ORA-01722
　　-1722
　　LOGIN_DENIED
　　ORA-01017
　　-1017
　　NO_DATA_FOUND
　　ORA-01403
　　+100
　　NOT_LOGGED_ON
　　ORA-01012
　　-1012
　　PROGRAM_ERROR
　　ORA-06501
　　-6501
　　ROWTYPE_MISMATCH
　　ORA-06504
　　-6504
　　SELF_IS_NULL
　　ORA-30625
　　-30625
　　STORAGE_ERROR
　　ORA-06500
　　-6500
　　SUBSCRIPT_BEYOND_COUNT
　　ORA-06533
　　-6533
　　SUBSCRIPT_OUTSIDE_LIMIT
　　ORA-06532
　　-6532
　　SYS_INVALID_ROWID
　　ORA-01410
　　-1410
　　TIMEOUT_ON_RESOURCE
　　ORA-00051
　　-51
　　TOO_MANY_ROWS
　　ORA-01422
　　-1422
　　VALUE_ERROR
　　ORA-06502
　　-6502
　　ZERO_DIVIDE
　　ORA-01476
　　-1476
　　Brief descriptions of the predefined exceptions follow:
ExceptionRaised when ...　　ACCESS_INTO_NULL
　　Your program attempts to assign values to the attributes of an uninitialized (atomically null) object.
　　CASE_NOT_FOUND
　　None of the choices in the WHEN clauses of a CASE statement is selected, and there is no ELSE clause.
　　COLLECTION_IS_NULL
　　Your program attempts to apply collection methods other than EXISTS to an uninitialized (atomically null) nested table or varray, or the program attempts to assign values to the elements of an uninitialized nested table or varray.
　　CURSOR_ALREADY_OPEN
　　Your program attempts to open an already open cursor. A cursor must be closed before it can be reopened. A cursor FOR loop automatically opens the cursor to which it refers. So, your program cannot open that cursor inside the loop.
　　DUP_VAL_ON_INDEX
　　Your program attempts to store duplicate values in a database column that is constrained by a unique index.
　　INVALID_CURSOR
　　Your program attempts an illegal cursor operation such as closing an unopened cursor.
　　INVALID_NUMBER
　　In a SQL statement, the conversion of a character string into a number fails because the string does not represent a valid number. (In procedural statements, VALUE_ERROR is raised.) This exception is also raised when the LIMIT-clause expression in a bulk FETCH statement does not evaluate to a positive number.
　　LOGIN_DENIED
　　Your program attempts to log on to Oracle with an invalid username and/or password.
　　NO_DATA_FOUND
　　A SELECT INTO statement returns no rows, or your program references a deleted element in a nested table or an uninitialized element in an index-by table. SQL aggregate functions such as AVG and SUM always return a value or a null. So, a SELECT INTO statement that calls an aggregate function never raises NO_DATA_FOUND. The FETCH statement is expected to return no rows eventually, so when that happens, no exception is raised.
　　NOT_LOGGED_ON
　　Your program issues a database call without being connected to Oracle.
　　PROGRAM_ERROR
　　PL/SQL has an internal problem.
　　ROWTYPE_MISMATCH
　　The host cursor variable and PL/SQL cursor variable involved in an assignment have incompatible return types. For example, when an open host cursor variable is passed to a stored subprogram, the return types of the actual and formal parameters must be compatible.
　　SELF_IS_NULL
　　Your program attempts to call a MEMBER method on a null instance. That is, the built-in parameter SELF (which is always the first parameter passed to a MEMBER method) is null.
　　STORAGE_ERROR
　　PL/SQL runs out of memory or memory has been corrupted.
　　SUBSCRIPT_BEYOND_COUNT
　　Your program references a nested table or varray element using an index number larger than the number of elements in the collection.
　　SUBSCRIPT_OUTSIDE_LIMIT
　　Your program references a nested table or varray element using an index number (-1 for example) that is outside the legal range.
　　SYS_INVALID_ROWID
　　The conversion of a character string into a universal rowid fails because the character string does not represent a valid rowid.
　　TIMEOUT_ON_RESOURCE
　　A time-out occurs while Oracle is waiting for a resource.
　　TOO_MANY_ROWS
　　A SELECT INTO statement returns more than one row.
　　VALUE_ERROR

　　An arithmetic, conversion, truncation, or>　　ZERO_DIVIDE
　　Your program attempts to divide a number by zero.
　　Oracle PL/SQL Exception 传送门：http://docs.oracle.com/cd/B10500_01/appdev.920/a96624/07_errs.htm